Automated test for Bevy through BRP

[mockersf]

Objective

• Show how a Bevy app can be automated through BRP

Solution

• Example app_under_test is a basic app with a randomly placed button. when the button is clicked, the app quit
• Example automated_test click that button through BRP using WindowEvent so that it goes through the whole of Bevy

Testing

• Run both example and they both exit

[kfc35]

I see the value in these examples as is (to demonstrate manipulating a live-app for testing purposes), but I wonder if these examples could be made more compelling by exploring it from the prospective of an app creator attempting to incorporate automated tests into their project.

For example, it might be helpful to setup how this could look if someone wants to have these automated tests run in CI by giving an example GitHub Action config or something alongside (although something like that might probably be in the works for this repo itself?, in which case I would just express that such a setup may be useful to share with app creators as well!).

I’m also not sure if the phrase “Automated Test” sounds too vague for what this is. I would liken this to an “(End-to-end?) Integration Test" since it tests running a whole app.

[alice-i-cecile]

Once this is merged, the testing section of the Bevy Book should be updated to link to this example.

[mockersf]

I see the value in these examples as is (to demonstrate manipulating a live-app for testing purposes), but I wonder if these examples could be made more compelling by exploring it from the prospective of an app creator attempting to incorporate automated tests into their project.

I think that's more book content than example content.

Also my long term goal is to have something similar to playwright in usability, but I failed to do it for a while so decided to go step by step and start with something that is like selenium 1.

I plan to add a bevy_integration_test_through_brp (or something else if I find a better name by then) with nice wrapper methods to send a mouse click on an element, automatic waits, assertions and selectors. I'll probably iterate in examples until I have something that could use its own crate.